Yes, I'd been following that thread as well. Depends on ones goals I suppose. I like highly realistic colour rendition personally, and I'd be happy to compromise on PAR efficiency to a certain degree for the sake of that. And so if a bit of the spectral output is lost, that's not a big deal to me as they nevertheless are quite efficient of fixtures with still a decent PAR output.
With that said, their 6300K fixture I bought has output spikes in the blue red and green wavelengths, so green plants and fish such as cardinal tetras might 'pop' under it, (figuratively only, hopefully). But their SolarMAX is actually quite similar in that respect, nevertheless I needed 5 foot long fixtures so I had ordered them now already.
But in my professional field I've seen demonstrations of the CRI of different architectural lighting and I was surprised as to the significant difference between CRI 80 and 90, so I'm wondering how accurately 'real' something such as BML's full spectrum 6300K's will actually appear to a discerning eye. Most aquarium fixtures just mix some white/red/blue chips to better represent colour, but I don't think that is adequate.